Product Description Polling Rate : 8000hz with USB 2.0 high speed hub or USB 3.0 hub. Hot swappable : Yes, with TTC King of Magnetic Switch, TTC Uranus Gaming Edition, and magnetic switches of the same series including: Meteor Magnetic Switch, Black King Switch, Dragon King Switch, Jade King Switch. Keycaps Profile : MDA, OEM and Cherry Factory Lubed : Yes Switch Type : [“Magnetic Hall Effect Switch”] Layout : 65% Number of Keys : 68 Keys Case Material : ABS Plastic Anti-Ghosting : Yes, Hero68 HE keyboard supports N-key rollover and calibration for anti-ghosting. Battery Size : No Battery RGB Backlight : South-facing Product Weight : 0.8kg Product Size : 31.4cm*12cm in width and length. 1.8cm and 3.1cm in height from spacebar side and ESC side